<template>
    <section class="loginContainer">
      <div class="loginInner">
        <div class="login_header">
          <h2 class="login_logo">硅谷外卖</h2>
          <div class="login_header_title">
            <a href="javascript:;" :class="{on:isLoginTrue}" @click="isLoginTrue=true">短信登录</a>
            <a href="javascript:;" :class="{on:!isLoginTrue}" @click="isLoginTrue=false">密码登录</a>
          </div>
        </div>
        <div class="login_content">
          <form>
            <div :class="{on:isLoginTrue}">
              <section class="login_message">
                <input type="tel" maxlength="11" placeholder="手机号" v-model="phone">
                <button :class="{black:isPhoneTrue}" :disabled="!isPhoneTrue" class="get_verification" @click.prevent="getCode">
                  {{computedTime>0?`还剩${computedTime}s`:'获取验证码'}}
                </button>
              </section>
              <section class="login_verification">
                <input type="tel" maxlength="8" placeholder="验证码" v-model="code">
              </section>
              <section class="login_hint">
                温馨提示：未注册硅谷外卖帐号的手机号，登录时将自动注册，且代表已同意
                <a href="javascript:;">《用户服务协议》</a>
              </section>
            </div>
            <div :class="{on:!isLoginTrue}">
              <section>
                <section class="login_message">
                  <input type="tel" maxlength="11" placeholder="手机/邮箱/用户名" v-model="name">
                </section>
                <section class="login_verification">
                  <input type="password" maxlength="8" placeholder="密码"
                  v-if='!isrightPwd' v-model="pwd">
                  <input type="text" maxlength="8" placeholder="密码"
                  v-else v-model="pwd">
                  <div class="switch_button" :class="isrightPwd?'on':'off'" @click="isrightPwd=!isrightPwd">
                    <div class="switch_circle" :class="{right:isrightPwd}"></div>
                    <span class="switch_text">{{isrightPwd?'abc':'...'}}</span>
                  </div>
                </section>
                <section class="login_message">
                  <input type="text" maxlength="11" placeholder="验证码" v-model="captcha">
                  <img class="get_verification" src="http://localhost:4000/captcha" alt="captcha"  @click="getCaptcha">
                </section>
              </section>
            </div>
            <button class="login_submit" @click.prevent="login">登录</button>
          </form>
          <a href="javascript:;" class="about_us">关于我们</a>
        </div>
        <a href="javascript:" class="go_back" @click='$router.back()'>
          <i class="iconfont icon-jiantou2"></i>
        </a>
      </div>

      <AlertTip :alertText='msg' v-show='showAlert' @closeTip='closeTip'></AlertTip>
    </section>
</template>

<script>
import {reqSendCode,reqSmsLogin,reqPwdLogin} from '../../api/index'
import AlertTip from '../../components/AlertTip/AlertTip'
export default {
    props: {

    },
    data() {
        return {
          isLoginTrue:true, //切换手机号登录还是账号密码登录
          phone:'', //手机号
          code:'', //手机号短信验证码
          computedTime:0, //计算时间
          name:'', //用户名
          pwd:'', //密码
          captcha:'', //图形验证码
          isrightPwd:false, //切换密码是否可见
          msg:'',//消息提示
          showAlert:false //控制弹框打开与关闭
        };
    },
    computed: {
      isPhoneTrue(){
        // 判断是不是输入了正确的手机号码
        return /^1\d{10}$/.test(this.phone)
      }
    },
    created() {

    },
    mounted() {

    },
    watch: {

    },
    methods: {
      // 打开弹框
      showAlt(text) {
        this.showAlert=true
        this.msg=text
      },
      // 关闭弹框
      closeTip() {
        this.showAlert=false
      },

      // 1 获取手机短信验证码
      async getCode() {
        if(!this.computedTime) {
          this.computedTime=30
          this.IntervalId = setInterval(() => {
            this.computedTime--;
            if(this.computedTime<0) {
              clearInterval(this.IntervalId)
            }
          }, 1000);
        }
        // 发送ajax 获取验证码
        let result = await reqSendCode(this.phone)
      },
      // 2 获取图形验证码
      getCaptcha(event) {
        // 服务器缓存
        event.target.src='http://localhost:4000/captcha?time='+Date.now()
      },
      // 3 登录提交事件功能
      async login(){
        // 判断登录方式
        let result
        let {isLoginTrue,phone,code}=this
        if(isLoginTrue) { //表示手机号登录
          if(!phone) {
            this.showAlt('手机号不能为空')
            return
          }
          if(!code) {
            this.showAlt('验证码不对')
            return
          }
          result = await reqSmsLogin(phone,code)
          // console.log(result)
        }else { //用户名密码登录
          let {name,pwd,captcha}=this
          if(!name) {
            this.showAlt('用户名不能为空')
            return
          }
          if(!pwd) {
            this.showAlt('密码不对')
            return
          }
          if(!captcha) {
            this.showAlt('验证码不对')
            return
          }
          result = await reqPwdLogin(name,pwd,captcha)
          console.log(result)
        }
        if(result.code==0) {
          let userInfo=result.data
          // 拿到结果后存储到vuex里面
          this.$store.dispatch('recordUser',userInfo)
          this.$router.replace('/profile')
        }
      }
    },
    components: {
      AlertTip
    },
};
</script>

<style scoped  lang='stylus' >
    .loginContainer
      width 100%
      height 100%
      background #fff
      .loginInner
        padding-top 60px
        width 80%
        margin 0 auto
        .login_header
          .login_logo
            font-size 40px
            font-weight bold
            color #02a774
            text-align center
          .login_header_title
            padding-top 40px
            text-align center
            >a
              color #333
              font-size 14px
              padding-bottom 4px
              &:first-child
                margin-right 40px
              &.on
                color #02a774
                font-weight 700
                border-bottom 2px solid #02a774
        .login_content
          >form
            >div
              display none
              &.on
                display block
              input
                width 100%
                height 100%
                padding-left 10px
                box-sizing border-box
                border 1px solid #ddd
                border-radius 4px
                outline 0
                font 400 14px Arial
                &:focus
                  border 1px solid #02a774
              .login_message
                position relative
                margin-top 16px
                height 48px
                font-size 14px
                background #fff
                .get_verification
                  position absolute
                  top 50%
                  right 10px
                  transform translateY(-50%)
                  border 0
                  color #ccc
                  font-size 14px
                  background transparent
                  &.black
                    color black
              .login_verification
                position relative
                margin-top 16px
                height 48px
                font-size 14px
                background #fff
                .switch_button
                  font-size 12px
                  border 1px solid #ddd
                  border-radius 8px
                  transition background-color .3s,border-color .3s
                  padding 0 6px
                  width 30px
                  height 16px
                  line-height 16px
                  color #fff
                  position absolute
                  top 50%
                  right 10px
                  transform translateY(-50%)
                  &.off
                    background #fff
                    .switch_text
                      float right
                      color #ddd
                  &.on
                    background #02a774
                  >.switch_circle
                    //transform translateX(27px)
                    position absolute
                    top -1px
                    left -1px
                    width 16px
                    height 16px
                    border 1px solid #ddd
                    border-radius 50%
                    background #fff
                    box-shadow 0 2px 4px 0 rgba(0,0,0,.1)
                    transition transform .3s
                    &.right
                      transform translateX(27px)
              .login_hint
                margin-top 12px
                color #999
                font-size 14px
                line-height 20px
                >a
                  color #02a774
            .login_submit
              display block
              width 100%
              height 42px
              margin-top 30px
              border-radius 4px
              background #4cd96f
              color #fff
              text-align center
              font-size 16px
              line-height 42px
              border 0
          .about_us
            display block
            font-size 12px
            margin-top 20px
            text-align center
            color #999
        .go_back
          position absolute
          top 5px
          left 5px
          width 30px
          height 30px
          >.iconfont
            font-size 20px
            color #999
</style>
